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ASQ

CQE · Question #87

A process has been experiencing problems lately. The operators charting the process have identified the cause to be due to a change in incoming materials. This problem is

The correct answer is B. A special cause. See the full explanation below for the reasoning.

Product and Process Control

Question

A process has been experiencing problems lately. The operators charting the process have identified the cause to be due to a change in incoming materials. This problem is

Options

  • AAttributed to purchasing.
  • BA special cause.
  • CA common cause.
  • DA normal event.

How the community answered

(28 responses)
  • A
    7% (2)
  • B
    71% (20)
  • C
    4% (1)
  • D
    18% (5)

Topics

#special cause variation#common cause variation#assignable cause#SPC

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